Susumu Inamoto

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DNMT3 proteins are de novo DNA methyltransferases that are responsible for the establishment of DNA methylation patterns in mammalian genomes. Here, we have determined the crystal structures of the ATRX-DNMT3-DNMT3L (ADD) domain of DNMT3A in an unliganded form and in a complex with the amino-terminal tail of histone H3. Combined with the results of(More)
The mini-F plasmid has the trans-acting sopA, sopB genes and the cis-acting sopC DNA which are essential for plasmid partitioning. In this paper, we report the purification of the sopB gene product from extracts of cells harboring a pBR322 derivative carrying the sopB gene. The purity of the final preparation was more than 95%, as determined by(More)
PURPOSE We previously reported that loss of SMAD4 promotes chemokine CCL15 expression to recruit CCR1(+) myeloid cells via the CCL15-CCR1 axis, which facilitates metastasis of colorectal cancer to the liver. The purposes of this study were to investigate whether essentially the same mechanism works in tumor invasion of the primary colorectal cancer and to(More)
To understand colon cancer metastasis, we earlier analyzed a mouse model that developed liver metastasis of cancer cells disseminated from the spleen. We suggested that CCR1+ bone marrow (BM)-derived cells are recruited to the microenvironment of disseminated colon cancer cells, and produce metalloproteinases MMP9 and MMP2, helping metastatic colonization.(More)
PURPOSE We have reported loss of SMAD4 promotes expression of CCL15 from colorectal cancer to recruit CCR1+ myeloid cells through the CCL15-CCR1 axis, which contributes to invasion and liver metastasis. However, the molecular mechanism of lung metastasis is yet to be elucidated. Our purpose is to determine whether similar mechanism is involved in the lung(More)
The inaugural version of the InGaP database (Integrative Gene and Protein expression database; is a comprehensive database of gene/protein expression profiles of 127 mKIAA genes/proteins related to hypothetical ones obtained in our ongoing cDNA project. Information about each gene/protein consists of cDNA microarray(More)
UNLABELLED KRAS gene mutations occur in approximately 40% of colorectal cancers (CRCs) and are associated with resistance to anti-epidermal growth factor receptor antibody therapy. We previously demonstrated that (18)F-FDG accumulation in PET was significantly higher in CRCs with mutated KRAS than in those with wild-type KRAS in a clinical setting. Here, we(More)
Complementary DNA (cDNA) clones for human KIAA genes have been isolated as long cDNAs (>4 kb) with unknown functions. To facilitate the functional analysis of these human clones, we have isolated and determined the structures of their respective mouse homologues (mKIAA genes). Furthermore, we have comprehensively raised antibodies against the translated(More)
BACKGROUND & AIMS Loss of the tumor suppressor SMAD4 correlates with progression of colorectal cancer (CRC). In mice, colon tumors that express CCL9 recruit CCR1(+) myeloid cells, which facilitate tumor invasion and metastasis by secreting matrix metalloproteinase 9. METHODS We used human CRC cell lines to investigate the ability of SMAD4 to regulate(More)